Erhai Lake played an important role in urban development in its process of environment evolvement as it is the second fresh water lake of the Yungui Planalto. 針對洱海特殊的生態(tài)環(huán)境和對大理城市發(fā)展所起的舉足輕重的作用,2002年通過實(shí)地環(huán)境調(diào)查和系列歷史及動(dòng)態(tài)資料分析進(jìn)行了洱海和大理城市之間人地關(guān)系的互動(dòng)研究。